Fuel Pump and Filter - Replacement Information
NO.: 14-03-93GROUP: Fuel System
DATE: Mar. 5, 1993
SUBJECT:
Fuel Pump and Filter Diagnosis and Service
MODELS:
1989 - 1993 (AA) Spirit/Acclaim/LeBaron Sedan
1989 - 1993 (AB) Ram Van/Wagon
1989 - 1993 (AC) Dynasty/New Yorker/New Yorker Salon
1989 - 1993 (AD) Ram Pickup/Ram Cab & Chassis/Ramcharger (2WD, 4WD)
Power Ram/Power Ram Cab & Chassis
1989 - 1993 (AG) Daytona
1989 (AH) Lancer/LeBaron GTS
1989 - 1993 (AJ) LeBaron Coupe/LeBaron Convertible
1989 - 1993 (AN) Dakota/Dakota Cab & Chassis (2WD, 4WD)
1989 - 1993 (AP) Shadow/Shadow Convertible/Sundance
1989 - 1993 (AS) Caravan/Grand Caravan/Caravan CV
Voyager/Grand Voyager/Town & Country
1990 - 1993 (AY) Imperial/New Yorker Fifth Avenue
1993 (LH) Concorde/Intrepid/Vision
1990 - 1992 (MJ) Comanche
1990 - 1993 (XJ) Cherokee/Wagoneer
1991 - 1993 (YJ) Wrangler
1993 (ZJ) Grand Cherokee/Grand Wagoneer
DISCUSSION:
After replacing a fuel pump it is necessary to check and/or replace the fuel filter.
The filter must be checked after the fuel pump is replaced by using the fuel-pressure test procedures outlined in group 14 of the appropriate service manual. If the pressure drop across the fuel filter exceeds 5 psi, the fuel filter must be replaced.
Failure to replace the fuel filter when the pressure drop exceeds 5 psi may cause the replacement pump to malfunction or fail prematurely.
NOTE:
IF THE VEHICLE IS A FLEX FUEL VEHICLE (FFV), ALWAYS REPLACE THE FUEL FILTER WHENEVER THE FUEL PUMP IS REPLACED.
POLICY:
Information Only